Add isGuest/setGuest

lib/client.js

@@ -153,8 +153,8 @@ function MatrixClient(opts) {
     }
     this._syncState = null;
     this._syncingRetry = null;
-
     this._guestRooms = null;
+    this._isGuest = false;
 }
 utils.inherits(MatrixClient, EventEmitter);
 
@@ -191,6 +191,27 @@ MatrixClient.prototype.getSyncState = function() {
     return this._syncState;
 };
 
+/**
+ * Return whether the client is configured for a guest account.
+ * @return {boolean} True if this is a guest access_token (or no token is supplied).
+ */
+MatrixClient.prototype.isGuest = function() {
+    return this._isGuest;
+};
+
+/**
+ * Set whether this client is a guest account. <b>This method is experimental
+ * and may change without warning.</b>
+ * @param {boolean} isGuest True if this is a guest account.
+ */
+MatrixClient.prototype.setGuest = function(isGuest) {
+    // EXPERIMENTAL:
+    // If the token is a macaroon, it should be encoded in it that it is a 'guest'
+    // access token, which means that the SDK can determine this entirely without
+    // the dev manually flipping this flag.
+    this._isGuest = isGuest;
+};
+
 /**
  * Retry a backed off syncing request immediately. This should only be used when
  * the user <b>explicitly</b> attempts to retry their lost connection.